Having installed a FCR pumper carb on my xr650l before .... I know the benefits and power delivery feel that a pumper carb can provide. It was a "night & day" conversion on the xr650l.
So a few quick questions?
- where did you source the carb?
- what size jetting are you using?
- are u using the stock intake boot?
- what about the air filter/box side?
Great work and it should be a amazing upgrade.